She didn't violate that law though. She ... Important difference.
I see no difference. In this case, policy means the same thing as law, and rule means the same thing as law. You're making the terms out to mean completely different things when you're just using a euphemism for violating a federal act. It's like when you guys made the investigation sound better by labeling it as a "security inquiry", only for that to be discredited.
And really, don't turn to the argument of "well, past secretaries did it. What's the big deal?" None of those past secretaries are running for president. And does the fact Clinton was just plain negligent about her handling of the emails really make her an ideal candidate? Or are we just gonna forgive her for it like the laundry list of "mistakes" and "accidents" in the past?